From owner-freebsd-current@FreeBSD.ORG Wed Jun 24 20:04:54 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 25C73106566C for ; Wed, 24 Jun 2009 20:04:54 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: from smtprelay07.ispgateway.de (smtprelay07.ispgateway.de [80.67.29.7]) by mx1.freebsd.org (Postfix) with ESMTP id A422B8FC0A for ; Wed, 24 Jun 2009 20:04:53 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: from [62.143.132.243] (helo=localhost) by smtprelay07.ispgateway.de with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.68) (envelope-from ) id 1MJYiC-00039J-1o for freebsd-current@freebsd.org; Wed, 24 Jun 2009 22:04:52 +0200 Date: Wed, 24 Jun 2009 22:04:41 +0200 From: Fabian Keil To: freebsd-current@freebsd.org Message-ID: <20090624220441.5ee0b4ce@fabiankeil.de> In-Reply-To: <20090620123657.21728020@fabiankeil.de> References: <20090620123657.21728020@fabiankeil.de> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.16.2; i386-portbld-freebsd8.0) X-PGP-KEY-URL: http://www.fabiankeil.de/gpg-keys/freebsd-listen-2008-08-18.asc Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/42IcyFKkrA9d4YuzX2/mHDx"; protocol="application/pgp-signature" X-Df-Sender: 775067 Subject: Re: mbuf layout optimizations X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-current@freebsd.org List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Jun 2009 20:04:54 -0000 --Sig_/42IcyFKkrA9d4YuzX2/mHDx Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Fabian Keil wrote: > Jeff Roberson wrote: >=20 > > http://people.freebsd.org/~jeff/mbuf2.diff >=20 > > This is a call for testers and feedback on my mbuf layout > > improvements. I'm trying to decide whether I will push to have these > > included in 8.0. After reducing the scope slightly from my last patch, > > I have not encountered any problems. Kip Macy has also been using it > > for the past few weeks without issue. > >=20 > > You should not expect any functional changes from this patch. The > > goal is mostly to pave the way fors more sensible mbuf handling in the > > future, although it does offer a few performance benefits. >=20 > So far I haven't been able to reproduce the em-related panic I > reported with an earlier version of the patch. I'm not sure if > it was reproducible back then, though. By now I experienced three system freezes with Xorg running (thus no backtrace, I'm afraid). One of them occurred directly after opening a new connection through the browser. All three freezes happened with em0 down and unconnected, iwi0 in use and with Tor and a background ping running. I run cvsup before applying the patch, so this may be an unrelated problem that crept in with the update. I'm currently compiling the kernel with vanilla CURRENT from 2009-06-21 to see if the freezes go away. Fabian --Sig_/42IcyFKkrA9d4YuzX2/mHDx Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkpChuMACgkQBYqIVf93VJ3YPACfQZQaEmFAc9CSAXNXdzDMOTgh xjgAoI4NCNCLEGOFZn3f5eQwOuRyxG2G =i1JM -----END PGP SIGNATURE----- --Sig_/42IcyFKkrA9d4YuzX2/mHDx--